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STM32L151C6 bảng dữ liệu(PDF) 27 Page - STMicroelectronics

tên linh kiện STM32L151C6
Giải thích chi tiết về linh kiện  Ultra-low-power 32-bit MCU ARM®-based Cortex®-M3, 128KB Flash, 16KB SRAM, 4KB EEPROM, LCD, USB, ADC, DAC
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nhà sản xuất  STMICROELECTRONICS [STMicroelectronics]
Trang chủ  http://www.st.com
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STM32L151C6 bảng dữ liệu(HTML) 27 Page - STMicroelectronics

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STM32L151x6/8/B STM32L152x6/8/B
Functional overview
48
implementation based on a surface charge transfer acquisition principle. It consists of
charging the sensor capacitance and then transferring a part of the accumulated charges
into a sampling capacitor until the voltage across this capacitor has reached a specific
threshold. The capacitive sensing acquisition only requires few external components to
operate.
Reliable touch sensing functionality can be quickly and easily implemented using the free
STM32L1xx STMTouch touch sensing firmware library.
3.15
Timers and watchdogs
The ultra-low-power STM32L151x6/8/B and STM32L152x6/8/B devices include six general-
purpose timers, two basic timers and two watchdog timers.
Table 6 compares the features of the general-purpose and basic timers.
Table 6. Timer feature comparison
Timer
Counter
resolution
Counter
type
Prescaler
factor
DMA request
generation
Capture/compare
channels
Complementary
outputs
TIM2,
TIM3,
TIM4
16-bit
Up,
down,
up/down
Any integer
between 1
and 65536
Yes
4
No
TIM9
16-bit
Up
Any integer
between 1
and 65536
No
2
No
TIM10,
TIM11
16-bit
Up
Any integer
between 1
and 65536
No
1
No
TIM6,
TIM7
16-bit
Up
Any integer
between 1
and 65536
Yes
0
No



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